Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 440)

App.C-3
IM 11B08A01-01E
Purity:
Measuring range from 0 to 50 ppm or more:
99.99% minimum (water: 10 ppm or
less, organic components: 5 ppm or
less)
Measuring range from 0 to less than 50 ppm:
99.999% minimum (water: 5 ppm or
less, organic components: 0.1 ppm
or less)
Pressure:
H
2
: 500 kPa (72.5 psi) (supplied with
extra-regulator for explosion-proof
certifi cation)
Other than H
2
: 400 to 700 kPa
Consumption:
60 to 300 mL/min per isothermal oven
Connection: 6 mm or 1/4″ tube
3.2.3 Combustion air for FID/FPD:
Purity:
Measuring range from 0 to 50 ppm or more:
water: 10 ppm or less,
organic components: 5 ppm or less
Measuring range from 0 to less than 50 ppm:
water: 5 ppm or less,
organic components: 0.1 ppm or less
Pressure: 400 to 700 kPa
Consumption:
Approximately 300 mL/min per
detector
Connection: 6 mm or 1/4″ tube
4. Input and Output Specifi cations
Wiring method:
FM: Conduit wiring (3/4NPT(F))
ATEX, IECEx: Cable packing (G3/4(F),
3/4NPT(F), M25x1.5(F))
TIIS: Cable packing (G3/4(F), 3/4NPT(F)),
Sealing fi tting (only for Ethernet
cable)
Note: Cable packing for TIIS is provided by Yokogawa.
Other conduit wiring or cable packing should be
prepared by the user.
Wiring connection:
FM-X, ATEX, IECEx, TIIS:
Contact outputs for System Alarm 1,
Annunciator: Explosion proof
enclosure
Other I/Os: Control unit
FM-Y:
All I/Os: Control unit
4.1 Communication
4.1.1
Connection to Analyzer network
Included as standard.
Communication standard: Ethernet
Connection type: IEEE802.3U
100Base-TX (RJ-45 shielded twisted
pair cable) or 100Base-FX (SC fi ber-
optics cable)
Channel: 1 or 2
Protocol: TCP/IP, FTP
Data to be transmitted:
Analysis results, calibration factors,
alarms, status, and chromatogram
Data to be received:
Operation requests (stream sequence
setting, stream setting, run, stop,
pause, and range change)
Device to be connected:
PCAS, ASET, ASGW, GC8000 (LCD),
and OPC through FCN/FCJ
Note: SHDSL interface (K9802PB) is provided as an
option (1 channel only).
External I/O Cutoff Output:
Number of outputs: 2
Function: Monitoring the purge air pressure
in the electronics section, applying
power (24 V DC) to the signal
interrupter when the state is normal.
Signal interrupter (Rack-mounted type:
K9806AA, Desktop type:K9806AB):
FM-X, ATEX, IECEx, TIIS:
Additionally required (only with
twisted pair cables). Signal is
interrupted by power supply OFF
signals from the external I/O cutoff
output.
FM-Y: Not required
Note: For installation in hazardous area, an explosionproof
structure authenticated by a relevant certifi ed body
shall be prepared by customer.
4.1.2 Connection to DCS
Both Ethernet and Serial communication are
available.
(1) Ethernet communication
The same port as analyzer network is used.
Refer to 4.1.1 Connection to Analyzer network.
Communication standard: Ethernet
Protocol: Modbus/TCP
Communication speed: 100Mbps
Number of DCS connections: Maximum of 4
(2) Serial communication (Option)
Channnel: 1 or 2
Communication standard: RS-422
Transmission: Full duplex (4-wire system)
Protocol: Modbus, Y-Protocol (GC1000/GC8,
GC6 and BTU for Japan)
Note: Concurrent usage of Y-Protocol is not available.
Start-stop (asynchronous) communication:
Start bit 1, Data bits 7 (ASCII)/Data
bits 8 (RTU), Parity bit 1, Stop bit 1
Parity check: Odd/even/none
Communication speed:
1200/2400/4800/9600/19200/38400
bps
Transmission mode:
ASCII or RTU
Note: Only the ASCII format is used in the Y-Protocol.
Communication control:
None/handshake
Data to be transmitted:
Analysis results, calibration factors,
and alarms
2nd Edition : May 11, 2012-00
App.C